A highly efficient redox- and step-economic method to synthesize N,O- and O,O-difluoroboron complexes from alkynes under aqueous condition with HBF4 as BF2 source has been developed. This strategy features good yields, broad substrate scope, mild reaction conditions, readily available starting materials and gram-scale synthesis. Significantly, these difluoroboron complexes present good fluorescence properties, indicating their potential applications in luminescent materials.

中文翻译：

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一种从炔烃中合成 N/O、O-二氟硼配合物的有效方法

开发了一种高效的氧化还原和逐步经济的方法，可在水性条件下以 HBF4 作为 BF2 源，由炔烃合成 N,O- 和 O,O-二氟硼络合物。该策略具有收率高、底物范围广、反应条件温和、原料易得和克级合成等特点。值得注意的是，这些二氟硼配合物表现出良好的荧光特性，表明它们在发光材料中的潜在应用。